CN202892523U - Intravenous drip finish warning device - Google Patents
Intravenous drip finish warning device Download PDFInfo
- Publication number
- CN202892523U CN202892523U CN 201220394796 CN201220394796U CN202892523U CN 202892523 U CN202892523 U CN 202892523U CN 201220394796 CN201220394796 CN 201220394796 CN 201220394796 U CN201220394796 U CN 201220394796U CN 202892523 U CN202892523 U CN 202892523U
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- Prior art keywords
- chip microcomputer
- resistance
- warning device
- intravenous drip
- processing circuit
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- Expired - Fee Related
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Abstract
The utility model provides an intravenous drip finish warning device which comprises a plate condenser (1), an oscillating circuit (2), a singlechip detection processing circuit (3) and a sound-light warning circuit (4). The intravenous drip finish warning device is characterized in that two poles of the plate condenser (1) are connected with an input end of the oscillating circuit (2), an output end of the oscillating circuit (2) is connected with an input end of the singlechip detection processing circuit (3), and an output end of the singlechip detection processing circuit (3) is connected with an input end of the sound-light warning circuit (4). According to the home-made plate condenser, an infusion tube and liquid in the infusion tube serve as capacitance media, and capacitance and electric quantity are changed according to a method that the permittivity is changed according to the quantity of the liquid in the infusion tube, and therefore fluctuating frequency of the oscillating circuit is changed so as to achieve a purpose of warning when transfusion finishes. Detection warning to the electric quantity of a battery is added to the warning device, and therefore accidents caused by non-warning when transfusion finishes due to the fact that the electric quantity of the battery is insufficient are avoided. The intravenous drip finish warning device has the advantages of being simple in structure, convenient to use and low in cost.
Description
Technical field
It is a kind of for clinical vein instillation Warning device for ending that this utility model provides, and belongs to medical instruments field.
Background technology
The equipment that is used for clinically at present the control transfusion; owing to there are all higher problems of purchase cost and clinical application cost; be difficult to carry out clinical practice on a large scale; can only be used for high risk patient's transfusion control, warning; Transfusion For Outpatients, the general patient's in ward transfusion then can't effectively be managed control, if so that transfusion when finishing patient or guardian's carelessness be easy to make air to enter in the patient body and crisis life.
The utility model content
According to above the deficiencies in the prior art, the technical problems to be solved in the utility model is: a kind of simple in structure, Warning device for ending infusion that cost is low is provided.
The technical scheme that its technical problem that solves this utility model adopts is: a kind of intravenous drip Warning device for ending, comprise capacity plate antenna, oscillating circuit, single-chip microcomputer Check processing circuit, sound light alarming circuit, it is characterized in that: put into tube for transfusion between plate condenser (1) two-plate.Realize the warning of transfusion by the variation of Detection capacitance capacity.
Described plate condenser the two poles of the earth connect the input of oscillating circuit, and the outfan of oscillating circuit connects the input of single-chip microcomputer Check processing circuit, and the outfan of single-chip microcomputer Check processing circuit connects the input of sound light alarming circuit.When have liquid by two-plate between the time capacity plate antenna dielectric constant will change, then the capacity of electric capacity can change, thereby the frequency of oscillation of oscillating circuit is also changed, and will detect frequency of oscillation by single-chip microcomputer Check processing circuit and process to judge whether transfusion finishes, and sends simultaneously sound and light alarm.
Described oscillating circuit comprises resistance R 1, resistance R 2, capacity plate antenna Cx and ic 555.Described oscillation circuit is the RC oscillation circuit, and cost is low, dependable performance, and timing precision is high.
The outfan F of described oscillating circuit connects the T1 end of single-chip microcomputer.
Chip Microcomputer A/D C2 end in the described single-chip microcomputer Check processing circuit is by the base stage of resistance R 9 connection NPN audion Q1, and the colelctor electrode of NPN audion Q1 connects positive source, the grounded emitter of NPN audion Q1 after connecting emergency alarm bell.Sound by single-chip microcomputer processing circuit controls emergency alarm bell stops.
Connect positive source after Chip Microcomputer A/D C3 end connecting luminous diode D4 in the described single-chip microcomputer Check processing circuit and the resistance R 8, by single-chip microcomputer processing circuit controls alarm lamp.
Connect positive source after Chip Microcomputer A/D C4 end connecting luminous diode D3 in the described single-chip microcomputer Check processing circuit and the resistance R 6.D3 and R6 form the battery electric quantity working state indicating circuit.
Connect positive source after Chip Microcomputer A/D C5 end connecting luminous diode D2 in the described single-chip microcomputer Check processing circuit and the resistance R 5.D2 and R5 form the power work indicating circuit.
Chip Microcomputer A/D C7 contact resistance R3 and resistance R 7 in the described single-chip microcomputer Check processing circuit, R3 connects power supply, and R7 holds ground connection, ADC6 end contact resistance R4 and diode D1, resistance R 4 terminations+5V, diode D1 ground connection.Resistance R 3 and resistance R 7 carry out entering single-chip microcomputer by the ADC6 termination after the dividing potential drop, enter single-chip microcomputer by the ADC7 termination after resistance R 4 and the diode D1 dividing potential drop, carry out date processing by single-chip microcomputer inside, when voltage is lower than 6V, single-chip microcomputer is reported to the police by the detection of D3 real-time implementation to battery electric quantity.
The beneficial effect that this utility model has is: homemade plate condenser with tube for transfusion and liquid in pipe as capacitor dielectric, change the electric capacity electric weight by the method that has or not to change dielectric constant as the tube for transfusion of condenser dielectric and liquid in pipe, thereby the concussion frequency that changes oscillating circuit realizes transfusion and finishes the purpose of reporting to the police, described infusion alarm increased to battery electric quantity detection alarm, avoid because the electric weight deficiency is not reported to the police when causing transfusion to finish causes the accident, this utility model is simple in structure, easy to use, cost is low.
Description of drawings
Fig. 1 is this utility model Warning device for ending infusion structural representation;
Fig. 2 is that this utility model transfusion finishes the alarm circuit system schematic diagram.
Among the figure: 1, plate condenser; 2, oscillating circuit; 3, single-chip microcomputer Check processing circuit; 4, sound light alarming circuit.
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is described further:
Shown in Fig. 1-2, the intravenous drip Warning device for ending, comprise plate condenser 1, oscillating circuit 2, single-chip microcomputer Check processing circuit and sound light alarming circuit 4, plate condenser 1 two-plate connects the input of oscillating circuit 2, the outfan of oscillating circuit 2 connects the input of single-chip microcomputer Check processing circuit 3, and the outfan of single-chip microcomputer Check processing circuit 3 connects the input of sound light alarming circuit 4.Oscillating circuit 2 comprises resistance R 1, resistance R 2, capacity plate antenna Cx, C0 and ic 555.The outfan F of oscillating circuit 2 connects the T1 end of single-chip microcomputer.Chip Microcomputer A/D C2 end in the single-chip microcomputer Check processing circuit 3 is by the base stage of resistance R 9 connection NPN audion Q1, and the colelctor electrode of NPN audion Q1 connects positive source, the grounded emitter of NPN audion Q1 after connecting emergency alarm bell.Connect positive source after Chip Microcomputer A/D C3 end connecting luminous diode D4 in the single-chip microcomputer Check processing circuit 3 and the resistance R 8.Connect positive source after Chip Microcomputer A/D C4 end connecting luminous diode D3 in the single-chip microcomputer Check processing circuit 3 and the resistance R 6.Chip Microcomputer A/D C7 end contact resistance R3 and R7 in the single-chip microcomputer Check processing circuit 3, R3 connects power supply, and R7 holds ground connection, ADC6 end contact resistance R4 and diode D1, resistance R 4 terminations+5V, diode D1 ground connection connects positive source behind ADC5 end connecting luminous diode D2 and the R5.
Operation principle and use procedure:
During use, the tube for transfusion upper part is put between plate condenser 1 two-plate, when in the tube for transfusion during no liquid electric capacity dielectric constant about 1.2, the electric capacity dielectric constant becomes about 80 when having liquid to flow through in the tube for transfusion, relation according to the distance between capacitance and medium and platen area, the two poles of the earth, capacitance will have large change, thereby affected the frequency of oscillation of oscillating circuit 2, detect the variation of front and back frequency by single-chip microcomputer Check processing circuit 3 and judge having or not of transfusion liquid in pipe, and produce warning.
Claims (9)
1. intravenous drip Warning device for ending, comprise plate condenser (1), oscillating circuit (2) and single-chip microcomputer Check processing circuit (3), sound light alarming circuit (4), it is characterized in that: the medium between the two-plate of plate condenser (1) is tube for transfusion.
2. a kind of intravenous drip Warning device for ending according to claim 1, it is characterized in that: described plate condenser (1) the two poles of the earth connect the input of oscillating circuit (2), the outfan of oscillating circuit (2) connects the input of single-chip microcomputer Check processing circuit (3), and the outfan of single-chip microcomputer Check processing circuit (3) connects the input of sound light alarming circuit (4).
3. a kind of intravenous drip Warning device for ending according to claim 2, it is characterized in that: described oscillating circuit (2) comprises resistance R 1, resistance R 2, C
0, capacity plate antenna Cx and ic 555.
4. a kind of intravenous drip Warning device for ending according to claim 2 is characterized in that: the T1 end of the outfan F connection single-chip microcomputer of described oscillating circuit (2).
5. a kind of intravenous drip Warning device for ending according to claim 2, it is characterized in that: the Chip Microcomputer A/D C2 end in the described single-chip microcomputer Check processing circuit (3) connects the base stage of NPN audion Q1 by resistance R 9, the colelctor electrode of NPN audion Q1 connects positive source, the grounded emitter of NPN audion Q1 after connecting emergency alarm bell.
6. a kind of intravenous drip Warning device for ending according to claim 2 is characterized in that: connect positive source after the Chip Microcomputer A/D C3 end connecting luminous diode D4 in the described single-chip microcomputer Check processing circuit (3) and the resistance R 8.
7. a kind of intravenous drip Warning device for ending according to claim 2 is characterized in that: connect positive source after the Chip Microcomputer A/D C4 end connecting luminous diode D3 in the described single-chip microcomputer Check processing circuit (3) and the resistance R 6.
8. a kind of intravenous drip Warning device for ending according to claim 2 is characterized in that: connect positive source after the Chip Microcomputer A/D C5 end connecting luminous diode D2 in the described single-chip microcomputer Check processing circuit (3) and the resistance R 5.
9. a kind of intravenous drip Warning device for ending according to claim 2, it is characterized in that: Chip Microcomputer A/D C7 end contact resistance R3 and resistance R 7 in the described single-chip microcomputer Check processing circuit (3), resistance R 3 connects power supply, resistance R 7 end ground connection, ADC6 contact resistance R4 and diode D1, resistance R 4 termination powers are anodal, diode D1 ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394796 CN202892523U (en) | 2012-08-09 | 2012-08-09 | Intravenous drip finish warning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220394796 CN202892523U (en) | 2012-08-09 | 2012-08-09 | Intravenous drip finish warning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202892523U true CN202892523U (en) | 2013-04-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220394796 Expired - Fee Related CN202892523U (en) | 2012-08-09 | 2012-08-09 | Intravenous drip finish warning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202892523U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104958810A (en) * | 2015-07-24 | 2015-10-07 | 广西水利电力职业技术学院 | Liquid level automatic alarm device in medical transfusion |
| CN105158578A (en) * | 2015-08-25 | 2015-12-16 | 北京工业大学 | Bridge method-based device for measuring dielectric constant of organism |
| CN105477741A (en) * | 2016-01-26 | 2016-04-13 | 南京信息工程大学 | Transfusion reminding device and method |
| CN104307098B (en) * | 2014-11-15 | 2016-09-07 | 唐晨 | Micropin doser and manufacture method thereof |
| CN105944181A (en) * | 2016-05-25 | 2016-09-21 | 王中成 | An infusion measuring and control device |
| CN108114344A (en) * | 2017-11-23 | 2018-06-05 | 上海电机学院 | A kind of infusion bag liquid level intelligent measurement and warning device and method |
-
2012
- 2012-08-09 CN CN 201220394796 patent/CN202892523U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104307098B (en) * | 2014-11-15 | 2016-09-07 | 唐晨 | Micropin doser and manufacture method thereof |
| CN104958810A (en) * | 2015-07-24 | 2015-10-07 | 广西水利电力职业技术学院 | Liquid level automatic alarm device in medical transfusion |
| CN105158578A (en) * | 2015-08-25 | 2015-12-16 | 北京工业大学 | Bridge method-based device for measuring dielectric constant of organism |
| CN105477741A (en) * | 2016-01-26 | 2016-04-13 | 南京信息工程大学 | Transfusion reminding device and method |
| CN105944181A (en) * | 2016-05-25 | 2016-09-21 | 王中成 | An infusion measuring and control device |
| CN108114344A (en) * | 2017-11-23 | 2018-06-05 | 上海电机学院 | A kind of infusion bag liquid level intelligent measurement and warning device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20130809 |